✔ 最佳答案
1米(nm)=1,000,000,000納米(nm)
所以1毫米(mm)=1,000,000納米(nm)
另外
1ly(光年)
=19,460,730,472,580.8km
=19,460,730,472,580,800m
=1,946,730,472,580,800,000cm
=19,460,730,472,580,800,000mm
=19,460,730,472,580,800,000,000(pu)m(微米)
=19,460,730,472,580,800,000,000,000nm
1km
=1,000m
=100,000cm
=1,000,000mm
=1,000,000,000'pu'm
=1,000,000,000,000nm
1m
=100cm
=1,000mm
=1,000,000(pu)m
=1,000,000,000nm
1cm
=10mm
=10,000(pu)m
=10,000,000nm
1mm
=1,000(pu)m
=1,000,000nm
1(pu)m
=1,000nm
1,000,000,000,000,000
2007-09-20 21:11:29 補充:
下面個個「1,000,000,000,000,000」唔駛理加,我手痕打多左落去......
2007-09-20 21:16:47 補充:
我打錯左d野1ly(光年)=19,460,730,472,580.8km=19,460,730,472,580,800m=1,946,073,047,258,080,000cm=1,946,073,047,258,080,000cm=1,946,073,047,258,080,000cm1ly=1,946,073,047,258,080,000cm=/=1,946,730,472,580,800,000cm